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Night time is for the partiers like me. When you stay up and watch YouTube all night and blast really obnoxious music. Also, all the badass creatures come out and eat the ones that are to weak cause they suck. Anyways, the night is for good times to act crazy and almost no one will be around to see or hear you, unless your being stalked. So make sure your not being stalked.

Okay, I personally, stay up almost all night every night because I can chill and not worry about other things and just relax and don’t give it frick about anything. But! It is important to sleep. I will get like, 10 hours of sleep, on a Thursday night, cause Thursdays are boring and think we should get rid of them. But, most of the time I’m up and playing games, blasting music, messing with random people, and looking on Pinterest. I find it a great way to spend you night.

If you cannot stay up all night like me, trust me, I went through the same thing. It’s kind of a painful process though. What I did was probably the dumbest way but it worked. So, what I did was, for 2 full weeks, I only got and hour or only 2 hours of sleep. And yo, it fricken worked. Now, I’m like a little Demond who is a night child, and will stay up all night. And no, I don’t have energy drinks or food, I’m not a cheater like all of you, I push through it and tough it out.

It took me about 2 months before I could stay up all night and stay awake all day and not look like a goth child with bags under my eyes. After that I was awake all night and having the time of my life! So I fully encourage you to try this. And yes, it is bad habit, but I love it.

Thank you for your time.

Sincerely, Night Child

Duration and geography

On Earth, an average night lasts shorter than daytime due to two factors. Firstly, the Sun's apparent disk is not a point, but has an angular diameter of about 32 arcminutes (32'). Secondly, the atmosphere refracts sunlight so that some of it reaches the ground when the Sun is below the horizon by about 34'. The combination of these two factors means that light reaches the ground when the center of the solar disk is below the horizon by about 50'. Without these effects, daytime and night would be the same length on both equinoxes, the moments when the Sun appears to contact the celestial equator. On the equinoxes, daytime actually lasts almost 14 minutes longer than night does at the Equator, and even longer towards the poles.

The summer and winter solstices mark the shortest and longest nights, respectively. The closer a location is to either the North Pole or the South Pole, the wider the range of variation in the night's duration. Although daytime and night nearly equalize in length on the equinoxes, the ratio of night to day changes more rapidly at high latitudes than at low latitudes before and after an equinox. In the Northern Hemisphere, Denmark experiences shorter nights in June than India. In the Southern Hemisphere, Antarctica sees longer nights in June than Chile. Both hemispheres experience the same patterns of night length at the same latitudes, but the cycles are 6 months apart so that one hemisphere experiences long nights (winter) while the other is experiencing short nights (summer).

In the region within either polar circle, the variation in daylight hours is so extreme that part of summer sees a period without night intervening between consecutive days, while part of winter sees a period without daytime intervening between consecutive nights.

On other celestial bodies

The phenomenon of day and night is due to the rotation of a celestial body about its axis, creating an illusion of the sun rising and setting. Different bodies spin at very different rates, however. Some may spin much faster than Earth, while others spin extremely slowly, leading to very long days and nights. The planet Venus rotates once every 224.7 days – by far the slowest rotation period of any of the major planets. In contrast, the gas giant Jupiter's sidereal day is only 9 hours and 56 minutes. However, it is not just the sidereal rotation period which determines the length of a planet's day-night cycle but the length of its orbital period as well - Venus has a rotation period of 224.7 days, but a day-night cycle just 116.75 days long due to its retrograde rotation and orbital motion around the Sun. Mercury has the longest day-night cycle as a result of its 3:2 resonance between its orbital period and rotation period - this resonance gives it a day-night cycle that is 176 days long. A planet may experience large temperature variations between day and night, such as Mercury, the planet closest to the sun. This is one consideration in terms of planetary habitability or the possibility of extraterrestrial life.

Effect on life

The disappearance of sunlight, the primary energy source for life on Earth, has dramatic effects on the morphology, physiology and behavior of almost every organism. Some animals sleep during the night, while other nocturnal animals including moths and crickets are active during this time. The effects of day and night are not seen in the animal kingdom alone; plants have also evolved adaptations to cope best with the lack of sunlight during this time. For example, crassulacean acid metabolism is a unique type of carbon fixation which allows photosynthetic plants to store carbon dioxide in their tissues as organic acids during the night, which can then be used during the day to synthesize carbohydrates. This allows them to keep their stomata closed during the daytime, preventing transpiration of precious water.

As artificial lighting has improved, especially after the Industrial Revolution, night time activity has increased and become a significant part of the economy in most places. Many establishments, such as nightclubs, bars, convenience stores, fast-food restaurants, gas stations, distribution facilities, and police stations now operate 24 hours a day or stay open as late as 1 or 2 a.m. Even without artificial light, moonlight sometimes makes it possible to travel or work outdoors at night.

Cultural aspects

Night is often associated with danger and evil, because of the psychological connection of night's all-encompassing darkness to the fear of the unknown and darkness's obstruction of a major sensory system (the sense of sight). Nighttime is naturally associated with vulnerability and danger for human physical survival. Criminals, animals, and other potential dangers can be concealed by darkness. Midnight has a particular importance in human imagination and culture.

The belief in magic often includes the idea that magic and magicians are more powerful at night. Séances of spiritualism are usually conducted closer to midnight. Similarly, mythical and folkloric creatures such as vampires and werewolves are described as being more active at night. Ghosts are believed to wander around almost exclusively during night-time. In almost all cultures, there exist stories and legends warning of the dangers of night-time. In fact, the Saxons called the darkness of night the 'death mist'.

In literature, night and the lack of light are often color-associated with blackness which is historically symbolic in many cultures for villainy, non-existence, or a lack of knowledge (with the knowledge usually symbolized by light or illumination).

The cultural significance of the night in Islam differs from that in Western culture. The Quran was revealed during the Night of Power, the most significant night according to Islam. Muhammad made his famous journey from Mecca to Jerusalem and then to heaven in the night. Another prophet, Abraham came to a realization of the supreme being in charge of the universe at night.

See also

• Earth's shadow
• Night aviation regulations in the US
• Night sky
• Nightlife
• Nocturne
• Olbers' paradox

References

1. Seidelmann, P. K.; Abalakin, V. K.; Bursa, M.; Davies, M. E.; et al. (2001). "Report of the IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements of the Planets and Satellites: 2000". HNSKY Planetarium Program. Retrieved 2007-02-02.

External links

• Quotations related to Night at Wikiquote
• The dictionary definition of night at Wiktionary

v t e Parts of a day
Daytime	Morning Noon Afternoon Evening
Twilight	Dawn Sunrise Sunset Dusk Blue hour
Night	Midnight Witching hour Brahmamuhurta
Related	Belt of Venus Golden hour Terminator Daylight Moonlight Midnight sun Polar night Zodiacal light

Darkness.

• Night
• Time in astronomy
• Parts of a day
• Darkness